wow that is concerning!!
If he goes out, they will probably go with milton for 2-3 games, and by the time they go to howell it will be too late.
So here is an idea just start howell for 4 games then milton for 3, then dak for 3 then back to howell for 3 and so forth. If they make playoffs dak wont be beat up and maybe still playing.
I think they could win the early games without dak.
But they will play him every game and in a runaway game against lowly arizona they are ahead 28-10 he will get hurt.
I would not play him against lowly teams. Use howell or milton,